<template>
  <button @click="isShowDemo = !isShowDemo">切换隐藏/显示</button>
  <Demo v-if="isShowDemo"></Demo>
</template>

<script>
  import Demo from './components/Demo.vue';
  import { ref } from 'vue';

  export default {
    name: 'App',
    components: {
      Demo: Demo
    },
    setup() {
      let isShowDemo = ref(true);
      return {
        isShowDemo,
      }
    },
  }
</script>